Active starch/pva composite films containing syzygium oleana for ammonia vapor colorimetric indicators

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ammonia is one of the compounds released during the food spoilage process, so a device that can detect ammonia can be used as an indicator of food spoilage. This article reports on the preparation and characteristics of Starch/PVA composite films with Syzygium oleana as indicator films to detect ammonia vapor. The indicator was made by first preparing the starch / PVA composite films by casting method and then the films were dipped in Syzygium oleana extract. These films were characterized by using a UV-Vis spectrophotometer, Fourier Transformed Infra-Red Spectrophotometer and tested for mechanical properties such as tensile strength and elongation, and the water vapor transmission rate (WVT). The results showed that the addition of PVA reduced the absorbance value in the UV and visible area, the value of the water vapor transmission rate and the tensile strength but the elongation value of the film on the other hand rose. The indicator films can detect ammonia which was marked by its color change from red to blue. For further application, it can be used as a smart packaging label that can detect food freshness.

Original languageEnglish
Title of host publicationNano Engineering and Materials Technologies IV
EditorsHao Gong, Kazuo Umemura
PublisherTrans Tech Publications Ltd
Pages318-324
Number of pages7
ISBN (Print)9783035715873
DOIs
Publication statusPublished - 2020
Event8th International Conference on Nanostructures, Nanomaterials and Nanoengineering, ICNNN 2019 and 4th International Conference on Materials Technology and Applications, ICMTA 2019 - Kyoto, Japan
Duration: 11 Oct 201914 Oct 2019

Publication series

NameMaterials Science Forum
Volume990 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference8th International Conference on Nanostructures, Nanomaterials and Nanoengineering, ICNNN 2019 and 4th International Conference on Materials Technology and Applications, ICMTA 2019
CountryJapan
CityKyoto
Period11/10/1914/10/19

Keywords

  • Ammonia indicators
  • Colorimetric
  • PVA
  • Starch
  • Syzygium oleana

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  • Cite this

    Listyarini, A., Handayani, W., Fauzia, V., & Imawan, C. (2020). Active starch/pva composite films containing syzygium oleana for ammonia vapor colorimetric indicators. In H. Gong, & K. Umemura (Eds.), Nano Engineering and Materials Technologies IV (pp. 318-324). (Materials Science Forum; Vol. 990 MSF). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.990.318